Burkert Type 8635 - Manual (Page 122)

120 - 8635
O
PERATING VIA THE
HART
HAND TERMINAL
(HART)
The SIDE Control Type 8635 may be configured, in the version with HART interface, by means of a
HART-compatible hand terminal.
Program the hand terminal with the device description belonging to the SIDE Control Type 8635 (Device
Description = DD).
These DDs are administrated and released by the HART Communication Foundation (HCF:
www.hartcomm.org). The DDs may be programmed by companies ( programming sites) authorized by
the HCF and who are provided with all DDs. A complete list of all authorized companies may be
obtained from www.hartcomm.org.
A hand terminal may contain several DDs. On purchase of a hand terminal or on updating of the DDs,
the HART user must choose which DDs the hand terminal should contain.
The following operating instructions refer to the HART Communicator Rosemount Model 275 for the DD
revision 2 (HCF DD library listing: 78/EF/02/02).
You can see a listing of all DDs presently available in the HART Communicator in the sub-menu Utility
Simulation. This can be reached with the key via the online menu.
General information on the SIDE Control Type 8635, e.g. on the Autotune function, a description of all
available functions, factory settings etc. are to be found in the chapters Operating and Controller
Functions or Operating the Process Controller. The chapter Operating via the HART Hand Terminal is
merely a supplement.
Data is transferred with the HART protocol in the form of a superimposed frequency: a digital signal
(2200 Hz
≡ 0, 1200 Hz ≡ 1) is modulated onto the setpoint standard signal 4 ... 20 mA by the FSK
procedure (Frequency Shift Keying).
The SIDE Control Type 8635 works with the HART Protocoll-Revision 5.7.
General
NOTE The handling of the HART-compatible hand terminal (HART Communicator) should be
taken from the operating instructions enclosed with the device.
ATTENTION!
Note that operation of the SIDE Control by the hand terminal may lead to malfunctions
in the running process, e.g. in the Autotune function or on changing some parameters
(on scaling of process value / external setpoint or on changing the decimal point, since
an update in the SIDE Control takes place only after quitting the function).
Only if these malfunctions cannot cause damage to the installation, may the
controller be configured in the running process via the HART hand terminal !